Fuel smell in exhaust, any ideas ?
I have a 2001 s3 and have recently had a lingering fuel smell around the vehicle whether cold or warm, I have taken a good whiff of exhaust and around where the injectors sit and they both smell of petrol, it doesnt stink but its there. I changed the cts to no avail and my VI Monitor seems to be giving the expected O2 levels althought the 02B1 sensor seems to be reading a little higher than my flatmates S3.. his shows around 0.66 and mine is more like 0.99 if that makes sense..
I have noticed a bit of gunk (fuel deposits ?) around where one of the injectors sits, could this be related ?
My temperature seems to sit around 85c, creeps up to 90c when moving slowly/stopped, again my flatmates reads around 94c and creeps up to 100c when moving slowly or stopped.. readings taken from air-con display with special code..
Any ideas will be greatly appreciated..